31105960

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{8017}}^1$

素因数の和:8125

約数の個数: 32

約数和(自身を含む): 70718760

約数和(自身を除く): 39612800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 8017, 16034, 32068, 40085, 64136, 80170, 160340, 320680, 777649, 1555298, 3110596, 3888245, 6221192, 7776490, 15552980, 31105960]

約数ペア:

[(1, 31105960), (2, 15552980), (4, 7776490), (5, 6221192), (8, 3888245), (10, 3110596), (20, 1555298), (40, 777649), (97, 320680), (194, 160340), (388, 80170), (485, 64136), (776, 40085), (970, 32068), (1940, 16034), (3880, 8017)]